diff options
| author | Takashi Iwai <tiwai@suse.de> | 2014-05-05 16:54:33 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2014-05-05 16:54:33 +0200 |
| commit | 59991da498122f779434c4e0beac8a69e0322938 (patch) | |
| tree | 23e46bc7f355c6d65f3246f756cd8ef84cfc3030 /arch/x86/xen/xen-asm_32.S | |
| parent | 02fd1a76bfeb8d6293608dc3a1b8667b1da5a923 (diff) | |
| parent | f06ab794af7055d0949b09885f79f8b493deec64 (diff) | |
Merge branch 'for-linus' into for-next
... for applying the further HDMI fixes.
Diffstat (limited to 'arch/x86/xen/xen-asm_32.S')
| -rw-r--r-- | arch/x86/xen/xen-asm_32.S | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S index 33ca6e42a4c..fd92a64d748 100644 --- a/arch/x86/xen/xen-asm_32.S +++ b/arch/x86/xen/xen-asm_32.S @@ -75,6 +75,17 @@ ENDPROC(xen_sysexit) * stack state in whatever form its in, we keep things simple by only * using a single register which is pushed/popped on the stack. */ + +.macro POP_FS +1: + popw %fs +.pushsection .fixup, "ax" +2: movw $0, (%esp) + jmp 1b +.popsection + _ASM_EXTABLE(1b,2b) +.endm + ENTRY(xen_iret) /* test eflags for special cases */ testl $(X86_EFLAGS_VM | XEN_EFLAGS_NMI), 8(%esp) @@ -83,15 +94,13 @@ ENTRY(xen_iret) push %eax ESP_OFFSET=4 # bytes pushed onto stack - /* - * Store vcpu_info pointer for easy access. Do it this way to - * avoid having to reload %fs - */ + /* Store vcpu_info pointer for easy access */ #ifdef CONFIG_SMP - GET_THREAD_INFO(%eax) - movl %ss:TI_cpu(%eax), %eax - movl %ss:__per_cpu_offset(,%eax,4), %eax - mov %ss:xen_vcpu(%eax), %eax + pushw %fs + movl $(__KERNEL_PERCPU), %eax + movl %eax, %fs + movl %fs:xen_vcpu, %eax + POP_FS #else movl %ss:xen_vcpu, %eax #endif |